Global Patent Index - EP 2372585 A1

EP 2372585 A1 20111005 - Method for defining fluid/solid boundary for computational fluid dynamics simulations

Title (en)

Method for defining fluid/solid boundary for computational fluid dynamics simulations

Title (de)

Verfahren zur Definierung einer Flüssigkeits-/Feststoffoberfläche für numerische Strömungssimulationen

Title (fr)

Procédé pour définir la surface fluide/solide pour simulations dynamique de fluides

Publication

EP 2372585 A1 20111005 (EN)

Application

EP 10015740 A 20101216

Priority

JP 2010082785 A 20100331

Abstract (en)

A method for defining a fluid/solid boundary for computational fluid dynamics simulations making use of a coordinate system mesh and a solid object model comprises: a step of defining straight lines on which all of the grid points of the coordinate system mesh are positioned; a step of obtaining intersecting points of the straight lines with the surface of the solid object model; and a step in which, for each of the straight lines having the intersecting points, the grid points on the straight line are searched for a nearest point to each of the intersecting points, and based on the searched-out nearest points, the grid points positioned are determined whether the grid point is positioned inside the solid object model or in the fluid region.

IPC 8 full level

G06F 17/50 (2006.01)

CPC (source: EP US)

G06F 30/23 (2020.01 - EP US); G06F 2111/10 (2020.01 - EP US)

Citation (applicant)

US 89700310 A 20101004

Citation (search report)

  • [A] XINGSHI WANG ET AL: "Interpolation functions in the immersed boundary and finite element methods", COMPUTATIONAL MECHANICS ; SOLIDS, FLUIDS, ENGINEERED MATERIALS, AGING INFRASTRUCTURE, MOLECULAR DYNAMICS, HEAT TRANSFER, MANUFACTURING PROCESSES, OPTIMIZATION, FRACTURE & INTEGRITY, SPRINGER, BERLIN, DE, vol. 45, no. 4, 3 December 2009 (2009-12-03), pages 321 - 334, XP019782187, ISSN: 1432-0924
  • [A] TYAGI ET AL: "Simulation of laminar and turbulent impeller stirred tanks using immersed boundary method and large eddy simulation technique in multi-block curvilinear geometries", CHEMICAL ENGINEERING SCIENCE, OXFORD, GB, vol. 62, no. 5, 21 January 2007 (2007-01-21), pages 1351 - 1363, XP005855426, ISSN: 0009-2509, DOI: 10.1016/J.CES.2006.11.017
  • [A] HENSHAW W D ET AL: "Moving overlapping grids with adaptive mesh refinement for high-speed reactive and non-reactive flow", JOURNAL OF COMPUTATIONAL PHYSICS, LONDON, GB, vol. 216, no. 2, 10 August 2006 (2006-08-10), pages 744 - 779, XP024947444, ISSN: 0021-9991, [retrieved on 20060810], DOI: 10.1016/J.JCP.2006.01.005
  • [A] WOOD C ET AL: "Partitioned block-Gauss-Seidel coupling for dynamic fluid-structure interaction", COMPUTERS AND STRUCTURES, PERGAMON PRESS, GB, vol. 88, no. 23-24, 14 September 2008 (2008-09-14), pages 1367 - 1382, XP027425275, ISSN: 0045-7949, [retrieved on 20080914], DOI: 10.1016/J.COMPSTRUC.2008.08.005
  • [A] RAINALD LÖHNER: "Robust, Vectorized Search Algorithms for Interpolation on Unstructured Grids", JOURNAL OF COMPUTATIONAL PHYSICS, vol. 118, 1 January 1995 (1995-01-01), pages 380 - 387, XP002636272
  • [A] SAMET H: "The quadtree and related hierarchical data structures", ACM COMPUTING SURVEYS, ACM, NEW YORK, NY, US, US, vol. 16, no. 2, 1 June 1984 (1984-06-01), pages 187 - 260, XP002321669, ISSN: 0360-0300, DOI: 10.1145/356924.356930
  • [A] GILMANOV A ET AL: "A hybrid Cartesian/immersed boundary method for simulating flows with 3D, geometrically complex, moving bodies", JOURNAL OF COMPUTATIONAL PHYSICS, LONDON, GB, vol. 207, no. 2, 10 August 2005 (2005-08-10), pages 457 - 492, XP004902815, ISSN: 0021-9991, DOI: 10.1016/J.JCP.2005.01.020
  • [A] WILLIAM D. HENSHAW: "Ogen: An Overlapping Grid Generator for Overture", 2 November 2003 (2003-11-02), XP002636273, Retrieved from the Internet <URL:https://computation.llnl.gov/casc/Overture/henshaw/documentation/ogen.pdf> [retrieved on 20110510]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2372585 A1 20111005; EP 2372585 B1 20190814; JP 2011215823 A 20111027; JP 5033211 B2 20120926; US 2011242095 A1 20111006; US 8797316 B2 20140805

DOCDB simple family (application)

EP 10015740 A 20101216; JP 2010082785 A 20100331; US 96639310 A 20101213